Processing Machinery
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PVC Profile Doors and Windows
Fenómeno do problema
Insufficient welded corner strength of PVC door and window profiles
Análise das causas
Improper welding temperature and time caused insufficient fusion at the welded corner; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Calibrate welding parameters according to profile specification; sample-check welded corner strength; standardize weld bead cleaning; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
Welded corner strength of doors and windows is guaranteed by welding parameters; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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